HP ProCurve 6600 Controlling PoE Allocation, usage, class:, value:, Table 11-2.Power Classes and Their Values, usage: The automatic allocation by a PD

Power Over Ethernet (PoE/PoE+) Operation

Configuring PoE Operation

Controlling PoE Allocation

The default option for PoE allocation is usage, which is what a PD attached to the port is allocated. You can override this value by specifying the amount of power allocated to a port by using the class or value options.

Syntax: [no] int <port-list> poe-allocate-by [usage class value]

Allows you to manually allocate the amount of PoE power for a port by either its class or a defined value.

usage: The automatic allocation by a PD

class: Uses the power ramp-up signature of the PD to identify which power class the device will be in. Classes and their ranges are shown in table 11-2.

value: A user-defined level of PoE power allocated for that port.

Note		The allowable PD requirements are lower than those specified for PSEs to
		allow for power losses along the Cat-5 cable.
		Table 11-2. Power Classes and Their Values
		Power Class	Value
	0		Depends on cable type and PoE architecture. Maximum
			power level output of 15.4 watts at the PSE.
			This is the default class; if there isn’t enough information
			about the load for a specific classification, the PSE
			classifies the load as class 0 (zero).
	1		Requires at least 4 watts at the PSE.
	2		Requires at least 7 watts at the PSE.
	3		15.4 watts
	4		For PoE+
			Maximum power level output of 30 watts at the PSE.

For example, to allocate by class for ports 6 - 8:ProCurve(config)# int 6-8 PoE-allocate-by class

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